Ignition apparatus



In UEnZ qr F. C. KROEGER IGNITION APPARATUS Filed March 12, 1924 Sept. 6, 1927.

.QW E5 Patented Sept. 6, 1927.-

- UNITED STATES (FREDERICK c. KROEGER, or ANDERSON,

INDTANA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO DELCO-REMY CORPORATION, OF DAYTON, OHIO, A CORPORATION OF DELAWARE.

IGNITION APPARATUS.

Applicatioiifiled March 12, 1924. Serial No. 698,582.

. This invention relates to electrical ignition apparatusfor internal combustionengines of the type including an ignition timer and distributor unit driven by the engine, the timer housing having a shank concentric with the timer shaft adapting it to be received by a tubular part or socket provided in the engine frame or, in an accessory operated by the engine. j

One object of the-invention is to provide for holding the ignition timerupon its support and to provide for adjusting the timer with respect to its driving means so that the ignition maybe advancecl or retarded. This object is accomplished by formin sheet metal a clamp adapted to ad ustably grip the shank of the timer housing, and by forming one or more arms extending from the shank. One of these arms may'cooperate with means for preventing endwis e movement of the timer, and theother may be connected. with the spark lever on the steerin column of the automobile for angularly adjusting the timer. I

Further objects and advantages of the present invention will be apparent from the followin descri ation reference bein had to the accompanying drawing wherein a preferred embodiment of one form of the present invention is clearly shown.

In the drawings:

Fig. 1 is an elevation of an ignition timer supported by a machine frame, a fragment" of which is shown, and a sectionalview of a, clamp embodying the present invention applied to thetimer.

Fig. 2 is a sectional view of the timer on line 22of Fig. 1, and a plan view of the clamp. 7

Fig. 3 is a sectional view on line 3-3 of Fig. 2.

Referring to the drawings'thetimer and distributor unit, hereaftercalled the timer, is designated by numeral'20 and includes a cup-shaped housing 21 having a shank 22 which includes a clamp receiving portion 23 and a portion 24 reduced" in diameter adapted to be receivedby a socket ina machine frame 25, the frame providing a bearing rotatably supporting the shank portion 24-. The frame 25 carries an engine driven shaft-26 connected by spiral gears 27 and 28with the timer shaft 29. The timer clamp designated as a whole from supporting frame 25.

by numeral 30 is provided with an aperture w slightly greater in diameter than theshank portion 23, and with spaced arms 31; and 32,

the ends, of which are bent around to form that the material is relatively narrow between the lines X-X and Y. Y in Fig. 2,

so that the arm 32 may yield slightly relat'ive to the main portion of the clamp.

In order to prevent endwise movement of the timer and clamp while permitting rotation thereof, the clamp is provided with an arm 40 having aslot 41 which receives a hold-down screw 42 engaging a tapped lug 43 provided by frame 25. Under the head of screw 42 there is located a spring 44 bearing against a hold-down washer 45 resting upon the arm 40. In this way the arm 40 is yieldingly held against the lug 43 and the shank portion 23 To turn the timer housing 21, the clamp 30 is provided with an arm'50 which is apertured to receive the end 51 of a link 52 con nected. in any suitable manner with the spark control lever of the automobile. washer 53 and pin 54 serve to hold the link 52 in place.

To adjust the timer relative to the spark control lever, the clamping screw is loosened yieldingly against the" to permit relative movement of the timer a desired position, for example, full retard.

I The timer is turned while the clamp remains shank. The timer is then connected for manipulation through the link 52 and arm 50.

If the timer is not manually controlled,

link 52 is, of course, omitted. -Thespring 44 is omitted between the screw head 42 and washer 45, so that the arm 40 may be and clamp. The spark lever is adjusted to 31 and 32 are tightened about the timer clamped in the desired position with respect to the supporting frame 25. Generally where manual control of spark timing is not used, the timer includes a speed responsive device for automaticaly controlling the spark.

While the form of embodiment of the invention as herein disclosed, constitutes a preferred form it is to be understood that other forms might be adopted, all coming within the scope oi the claims which follow.

What is claimed is as follows 1. A clamp for securing an operating member to the shank of an ignition timer, and comprising a relatively thin, flat member having an aperture for receiving the shank, and clamping arms including aligned tubular portions spaced by a notch extending to said aperture, the clamping arms be ing substantially greater in width of cross section near the tubular portions than portions adjacent the opposite side of the aperture, the width of any portion of the clamping arms being substantially greater than the thickness of the member; a bolt extending through the tubular portions; and a nut cooperating with the bolt to cause the arms to tightly embrace the shank, the bending oi the arms taking place chiefly about the side of the shank opposite the bolt.

2. A clamp according to claim 1 in which the flat member is provided with lugs offset from the main portion of the member and adapted to provide clai'nping grips which bite into the shank oi the timer housing when the arms of the clamp are drawn together, two of the lugs being each located adjacent the notch spacing the tubular portions and at least one other lug being located on the opposite side of the aperture.

In testimony whereof I hereto aliix my signature.

FREDERICK C. KROEGER. 

